Since aperture is the main event in aperture priority mode, you may not need to press the aperture button; simply rotate the command dial and look for the changing Numbers in the LCD status screen.

就光圈优先模式来说，光圈是最主要的参数，所以你并不需要再按光圈按钮，直接转动指令盘并且在LCD上查看数值变化即可。

youdao

It activates only one button: Press the F1 button and the phone begins to dial.

它只激活一个按钮：按下f 1按钮，电话就开始拨号。

youdao

You can even set a number to dial when you shake the phone in the event you can't press the button yourself.

即使碰到不能使用按键的情况，通过软件设置，您只要甩动下phone，就能拨打设定的紧急号码。

youdao

One of their current projects is the SmartButton, a wireless Bluetooth-enabled badge that connects to your phone and that you press when you want to call someone (you use the phone's voice recognition software to actually dial).

ENGADGET: Motorola's Bluetooth SmartButton